Heating apparatus



(N6 Mod'el L. B. I-IARTUNG.

HEATING APPARATUS.

Patented Apr. 2, 1889.

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UNITED STATES PATENT OFF CE.

LEWIS B. HARTUNG, OF CANTON, OHIO.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 400,453, dated April 2, 1889.

V Application filed December 10, 1888. Serial No. 293,213. (No model.)

' invented a new and useful Improvement in Heating Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to improvements in steam-heating apparatus; and it consists in providing a generator comprising a waterchamber and steam-dome having tubes projecting downwardly and return-tubes projected laterally, and a fire-grate constructed of tubes through which the water may cir culate.

With these ends in view my invention consists in certain features of construction and combination of parts hereinafter described, and set forth in the claims.

Figure l of the accompanying drawings is a view in perspective of a steam-generator illustrating my invention; and Fig. 2, a vertical sectional viewlongitudinally through the generator and inclosing-walls.

A represents a water-chamber and steamdome made of cast metal; or, if preferred, it may be made of sheets of wrought-iron or steeland riveted together, said chambers having a rearwardly and downwardly projected portion, as B. The chamber A is supported on pipes D D, which communicate with the fire=grate pipe E. The said grate is formed by the use of the pipes F, which connect the pipes E, thus forming a meansof communication between the chamber A and the firegrate G. The tubes Diwhich support the inher portion of the water-chamber, rest on the foundation wall. The lower face of the water-chamber A has a series of perforations, d, into which is secured depending pipes h, the lower ends of which terminate just above the fire on the grate G. In each of said vertical pipes h is placed a small open-ended pipe, 71., resting on the bottom of the tube h and extending into the chamber A, as shown in Fig. 2, throughwhich the water may circulate, passing down on the outside and up through the pipe h.

which are secured the pipes k, which are united at their outer, ends by elbows 'm and thimbles n, thus forming a continuous open pipe, through which the water may circulate out of and back into the chamber A.

The generator, as shown in Fig. 1, is inclosed in a brick wall, H, as shown in Fig. 2. The fuel-door may be placed either at the side or end of the wall below the water-chamber A. It will be apparent that by this construction a great amount of heating-surface is exposed to and brought in contact with the fire, the flame and heat striking the under side of the water-chamber -circulating about the tubes h, and under and up between and aboutthe pipes is before reaching the chimney J, the water having a free circu1ation from the chamber down the pipe D, through the grate-pipes F, and up through the pipe D and back into the chamber.

K represent-s one. of the common and wellknown forms of water-gages. Other forms, however, may be used in this connection if preferred.

L is the steam-pipe, through which steam is conducted to radiators or other places of use Any of the approved dampers, doors, and safety-valves may be used in connection with the generator; but, as Imake no claim to such devices, I have not shown them I am aware that water-chambers having a series of downwardly-projected tubes have been used. I therefore make no claim to them, broadly; but

What I'do claim,- and desire to secure by Letters Patent, is-.- a

1. The combination, with a water-chamber, as A, having a rearwardly and downwardly projected portion, as B, of the vertical tubes h and laterally-projected tubes is, substantially ber havingarearwardly and downwardly pro- In testimony whereofI have hereunto set my jected portion B, of the vertical tubes h, lathand this 30th day of November, A. D. 1888. erally-projeeted tubes 7c, supporting-pipes D LEWIS B HARTUNG D D and the fire-grate G, composed of the 5 pipes E and F, communicating with chamber Vitnesses:

A through the pipes D and D, substantially WV. K. MILLER, as described, and for the purpose set forth. CHAS. R. MILLER. 

